After the recent Enum -> interface changes, Class#getEnumConstants seems to return null.

The following code:

@Override
public void onEnable() {
    showArray(Cat.Type.class);
}

public static void showArray(Class<?> clazz) {
    System.out.println(Arrays.toString(clazz.getEnumConstants()));
}

properly prints the array on older versions, but prints out null on 1.21.

If it's not meant to have back-support can close this, but I assume it is seeing as Source of EnumEvil.java - CraftBukkit - SpigotMC Stash is there.